Home / 13,481,348.10-18,607,720.64-8,321,744.89

Finding the Fourth Proportional to 13,481,348.10, 18,607,720.64 and 8,321,744.89

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Solution

The fourth proportional to 13,481,348.10, 18,607,720.64 and 8,321,744.89 is: 11,486,143.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,481,348.10 : 18,607,720.64 = 8,321,744.89 : x
  2. Step 2: Convert to fraction form
    13,481,348.10/18,607,720.64 = 8,321,744.89/x
  3. Step 3: Cross multiply
    13,481,348.10x = 18,607,720.64 × 8,321,744.89
  4. Step 4: Simplify right side
    13,481,348.10x = 154,848,704,150,467.53
  5. Step 5: Solve for x
    x = 154,848,704,150,467.53/13,481,348.10
  6. Step 6: Final answer
    x = 11,486,143.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.